JPS5755097A - Stop device for x rays - Google Patents

Stop device for x rays

Info

Publication number
JPS5755097A
JPS5755097A JP55129098A JP12909880A JPS5755097A JP S5755097 A JPS5755097 A JP S5755097A JP 55129098 A JP55129098 A JP 55129098A JP 12909880 A JP12909880 A JP 12909880A JP S5755097 A JPS5755097 A JP S5755097A
Authority
JP
Japan
Prior art keywords
rays
stop
radiation
stop hole
focus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55129098A
Other languages
Japanese (ja)
Other versions
JPS6345223B2 (en
Inventor
Tadao Kubota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OOBAYASHI SEISAKUSHO KK
Original Assignee
OOBAYASHI SEISAKUSHO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by OOBAYASHI SEISAKUSHO KK filed Critical OOBAYASHI SEISAKUSHO KK
Priority to JP55129098A priority Critical patent/JPS5755097A/en
Publication of JPS5755097A publication Critical patent/JPS5755097A/en
Publication of JPS6345223B2 publication Critical patent/JPS6345223B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators

Abstract

PURPOSE:To enlarge or contract the radiation field of X rays always in the same shape and facilitate the stop adjusting operation, by arranging a stop plate principally made of lead and provided with a stop hole in a definite position in front of the radiation focus of X rays and moving it forward or backward from its set position. CONSTITUTION:A flat stop plate A principally made of lead and provided with a stop hole is arranged in a position set in front of the radiation focus of X rays, while making the center of the stop hole (a) coincide with the radiation axis of X rays. Then, an irradiation field is contracted in proportion to the forward travel distance of the stop hole (a) by moving the stop plate A under such conditions as the center of the stop hole (a) is kept in coincidence with the radiation axis of X rays from the focus X.
JP55129098A 1980-09-19 1980-09-19 Stop device for x rays Granted JPS5755097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55129098A JPS5755097A (en) 1980-09-19 1980-09-19 Stop device for x rays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55129098A JPS5755097A (en) 1980-09-19 1980-09-19 Stop device for x rays

Publications (2)

Publication Number Publication Date
JPS5755097A true JPS5755097A (en) 1982-04-01
JPS6345223B2 JPS6345223B2 (en) 1988-09-08

Family

ID=15001017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55129098A Granted JPS5755097A (en) 1980-09-19 1980-09-19 Stop device for x rays

Country Status (1)

Country Link
JP (1) JPS5755097A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083756A2 (en) * 1981-12-23 1983-07-20 General Electric Company Collimator with adjustable aperture
EP0349761A2 (en) * 1988-06-18 1990-01-10 A.B.T. GmbH Apparate - Behälter - Technologie Neutron spectrometer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0632757U (en) * 1992-10-01 1994-04-28 株式会社松井製作所 Constant velocity universal joint

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083756A2 (en) * 1981-12-23 1983-07-20 General Electric Company Collimator with adjustable aperture
EP0349761A2 (en) * 1988-06-18 1990-01-10 A.B.T. GmbH Apparate - Behälter - Technologie Neutron spectrometer
EP0349761A3 (en) * 1988-06-18 1990-01-31 A.B.T. GmbH Apparate - Behälter - Technologie Neutron spectrometer

Also Published As

Publication number Publication date
JPS6345223B2 (en) 1988-09-08

Similar Documents

Publication Publication Date Title
JPS53116852A (en) Automatic focus adjusting system
ES482020A1 (en) Apparatus for seeking and following a luminous zone, such as the sun
JPS5225625A (en) Focusing means for the telephoto lens
JPS5755097A (en) Stop device for x rays
JPS5439101A (en) Automatic focusing method
JPS52138924A (en) Focal detector
JPS5219047A (en) Dielectric-lens multibeam antenna
JPS5351540A (en) Sun tracking device
JPS548948A (en) Correction method for fluctuation
JPS52134786A (en) Radiation detector
JPS5363699A (en) Machining apparatus in use of laser beam
JPS53148284A (en) Charged particle ray apparatus
JPS5430821A (en) Quasi-wide angle lens
JPS5327439A (en) Focus measuring device
JPS51147264A (en) High-precision positioning system
JPS52154397A (en) Laser device with radiation positioning mechanism
JPS5449061A (en) Manufacture of pattern for graded shadow mask
JPS5371884A (en) Radiation detector
JPS53137194A (en) Radioactive ray detector
JPS5343197A (en) Radiotherapy device
JPS5273746A (en) Multifocal lenticular lens
JPS53107392A (en) Compound analyzer using excitation beam
JPS51136229A (en) Information reproducing
JPS5785229A (en) Casette holding device for electron beam exposure
JPS5211291A (en) Preparation of polyene-maleic anhydride graft copolymer